Ripmax Xcalibur Sports jet
#2553
My Feedback: (7)
Was looking at the Falcon 120 strut's springs and they appear to be the correct size for the X strut's.
https://images.app.goo.gl/pEJw77V4c89Y8AyVA
https://images.app.goo.gl/pEJw77V4c89Y8AyVA
Last edited by CARS II; 12-06-2020 at 02:34 PM.
#2554
Have anyone here changed a clamp in one of the wings?
One of mine broke today, probably due to cold weather, and before I think of alternative ways to secure the wings, I'd like to know if it's possible to change the clamp.
One of mine broke today, probably due to cold weather, and before I think of alternative ways to secure the wings, I'd like to know if it's possible to change the clamp.
#2557
As far as I can see, one would have to open up both the top and the bottom of the wing to change the clamp. One of the three screws is
close to the top skin, between the wing rod and the wing spar. It's rather tight in that area, and not possible for me to get a good photo of it.
Anyway, I decided to do a very quick and rather dirty repair. I opted not to change the clamp.
I drilled a hole through the clamp and the wing rod. I made a piece of 3mm ply to fit on top of the clamp, and I epoxied a piece of 3mm ply inside the wing rod. I screwed a 4mm machine screw through the clamp and wing rod, and I hardened the threads the screw made in the ply in the rod with thin ca. I covered the hole in the wing with 1mm balsa, found some genuine chinacote in the spares box, and covered it all up.
The fix took me around 1 hour, it is structurally sound, but it doesn't look pretty. Good enough for my beater jet, and the repair is on the bottom of the wing, so nobody will notice.
Broken clamp.
Screws holding the clamp.
Hole drilled in the clamp.
Ply epoxied in rod, machine screw through rod and ply.
Good enough for my beater jet.
close to the top skin, between the wing rod and the wing spar. It's rather tight in that area, and not possible for me to get a good photo of it.
Anyway, I decided to do a very quick and rather dirty repair. I opted not to change the clamp.
I drilled a hole through the clamp and the wing rod. I made a piece of 3mm ply to fit on top of the clamp, and I epoxied a piece of 3mm ply inside the wing rod. I screwed a 4mm machine screw through the clamp and wing rod, and I hardened the threads the screw made in the ply in the rod with thin ca. I covered the hole in the wing with 1mm balsa, found some genuine chinacote in the spares box, and covered it all up.
The fix took me around 1 hour, it is structurally sound, but it doesn't look pretty. Good enough for my beater jet, and the repair is on the bottom of the wing, so nobody will notice.
Broken clamp.
Screws holding the clamp.
Hole drilled in the clamp.
Ply epoxied in rod, machine screw through rod and ply.
Good enough for my beater jet.
#2560
#2561
My Feedback: (4)
Join Date: Jul 2013
Location: Millville,
NJ
Posts: 143
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just purchased a used x calibur spot from someone used, airframe only, I had a couple a few years back, this guy botched this thing all up rigging it. So needless to say I gutted it and am starting over with equipment install and what not. As I am removing the botched up trays and what not he has in it, I noticed he had wedges for the turbine mount that are adding up thrust to the turbine, if I remember right, they should have down not up trust , can someone confirm this for me please
#2562
just purchased a used x calibur spot from someone used, airframe only, I had a couple a few years back, this guy botched this thing all up rigging it. So needless to say I gutted it and am starting over with equipment install and what not. As I am removing the botched up trays and what not he has in it, I noticed he had wedges for the turbine mount that are adding up thrust to the turbine, if I remember right, they should have down not up trust , can someone confirm this for me please
#2563
My Feedback: (53)
just purchased a used x calibur spot from someone used, airframe only, I had a couple a few years back, this guy botched this thing all up rigging it. So needless to say I gutted it and am starting over with equipment install and what not. As I am removing the botched up trays and what not he has in it, I noticed he had wedges for the turbine mount that are adding up thrust to the turbine, if I remember right, they should have down not up trust , can someone confirm this for me please
#2564
My Feedback: (4)
Join Date: Jul 2013
Location: Millville,
NJ
Posts: 143
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Yes, the rails are there, looks like he blocked it up for clearence as stated above, but they are wedge shape blocks with the high side of the wedge facing aft, thus giving up thrust, didn't think that was right
#2569
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Join Date: Jul 2013
Location: Millville,
NJ
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#2570
Thread Starter
Unfortunately it’s the factory’s own covering that does not directly match any off the shelf colour. You could contact Mike at GJC and see if they ever ordered any of the factory film as a spare.
Dave
Dave
#2571
Member
I found that the oracover film colors are very closely resembling the original ones from ripmax.
It is visible to the naked eye if you look closely but totally unnoticable once you're a few feet away. Perhaps give it a shot ?
It is visible to the naked eye if you look closely but totally unnoticable once you're a few feet away. Perhaps give it a shot ?
#2572
Getting her out of mothballs
Last time I flew my Xcalibur I had several deadsticks due to "Failsafe". The last deadstick nearly ended in tears so lost confidence and so she went into mothballs.
I put that down to radio so decided to upgrade to Futaba and am now getting her ready to go again.
Turbine is a Jets-Munt VT80-BL with 12 hours on the clock.
1. What should I do with the turbine as it hasn't been run for approx 2 years?
I put that down to radio so decided to upgrade to Futaba and am now getting her ready to go again.
Turbine is a Jets-Munt VT80-BL with 12 hours on the clock.
1. What should I do with the turbine as it hasn't been run for approx 2 years?
I seem to remember this being asked before but can't find it despite much searching, sorry
2. The air retracts don't want to play ball, think they're seized. What do I need to do to get them moving again?I've seen Dave's suggestion to use silicon damper oil, I'll do that in the future.
I'm sure there will be more questions to come as I didn't build the Xcalibur or program the original radio.
#2573
My Feedback: (53)
Last time I flew my Xcalibur I had several deadsticks due to "Failsafe". The last deadstick nearly ended in tears so lost confidence and so she went into mothballs.
I put that down to radio so decided to upgrade to Futaba and am now getting her ready to go again.
Turbine is a Jets-Munt VT80-BL with 12 hours on the clock.
1. What should I do with the turbine as it hasn't been run for approx 2 years?
I put that down to radio so decided to upgrade to Futaba and am now getting her ready to go again.
Turbine is a Jets-Munt VT80-BL with 12 hours on the clock.
1. What should I do with the turbine as it hasn't been run for approx 2 years?
I seem to remember this being asked before but can't find it despite much searching, sorry
2. The air retracts don't want to play ball, think they're seized. What do I need to do to get them moving again?I've seen Dave's suggestion to use silicon damper oil, I'll do that in the future.
I'm sure there will be more questions to come as I didn't build the Xcalibur or program the original radio.for the gear y’a I used BVM silicone…..move by hand quite a few time……put 100 psi and it should cycle…..may need to pull the gear to lube and function it…
The following users liked this post:
BikerDon (08-10-2021)
#2574
Thread Starter
Me I just start the turbine, let it idle for 1-2minutes, then run it another 1-2 minutes just below mid throttle stick position where the turbine should be coolest, but running faster. Then run it at full power for 1minute (all approx times!) all the time listening for any roughness.
Shut it down and it it’s still quiet and smooth you should be good to go.
Gear, I would not use BVM O ring lube which swells the O rings, the gear is probably mechanically stuck. Stick some buggy shock silicon oil in the fill valve ( does not need much) pressure to around 100psi and operate valve, grab each leg and rock it, the slider should unstick and the gear slam up(down) once all three have moved cycle them multiple times.
Shut it down and it it’s still quiet and smooth you should be good to go.
Gear, I would not use BVM O ring lube which swells the O rings, the gear is probably mechanically stuck. Stick some buggy shock silicon oil in the fill valve ( does not need much) pressure to around 100psi and operate valve, grab each leg and rock it, the slider should unstick and the gear slam up(down) once all three have moved cycle them multiple times.
The following 2 users liked this post by Dave Wilshere:
BikerDon (08-10-2021),
DenisFerrari (08-09-2021)
#2575
Me I just start the turbine, let it idle for 1-2minutes, then run it another 1-2 minutes just below mid throttle stick position where the turbine should be coolest, but running faster. Then run it at full power for 1minute (all approx times!) all the time listening for any roughness.
Shut it down and it it’s still quiet and smooth you should be good to go.
Gear, I would not use BVM O ring lube which swells the O rings, the gear is probably mechanically stuck. Stick some buggy shock silicon oil in the fill valve ( does not need much) pressure to around 100psi and operate valve, grab each leg and rock it, the slider should unstick and the gear slam up(down) once all three have moved cycle them multiple times.
Shut it down and it it’s still quiet and smooth you should be good to go.
Gear, I would not use BVM O ring lube which swells the O rings, the gear is probably mechanically stuck. Stick some buggy shock silicon oil in the fill valve ( does not need much) pressure to around 100psi and operate valve, grab each leg and rock it, the slider should unstick and the gear slam up(down) once all three have moved cycle them multiple times.